Magnetoresistance Intensification of Fe3O4/BaTiO3 Nanoparticle-Composite-Sinter Produced by Low Temperature Heat Treatment
Magnetoresistance Intensification of Fe3O4/BaTiO3 Nanoparticle-Composite-Sinter Produced by Low Temperature Heat Treatment
复制标题
低温热处理制备 Fe3O4/BaTiO3 纳米粒子复合烧结体的磁阻强化
DOI:
10.1007/s10948-011-1271-9
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
清水哲夫
中科院分区:
文献类型:
--
作者:
小堀裕己;氏本勝也;星野晃範;山崎篤志;杉村陽;谷口年史;堀江智之;内藤泰久;清水哲夫
We have presented the study on the magnetoresistance intensification of (Fe3O4)1−X/(BaTiO3)Xnanoparticle-composite-sinter (NPCS) produced by low temperature heat treatment. The average sizes ofα-Fe2O3and BaTiO3nanoparticles are 30 nm and 40 nm, respectively. They were homogeneously mixed together and were sintered at 500 °C for 3 hours in the atmosphere of Ar(90%)/H2(10%).Xof (Fe3O4)1−X/(BaTiO3)XNPCS was varied between 0 and 0.75. With increasingX, the electrical resistivity (ER) increases and shows the Mott’s variable-range-hopping (VRH) conduction behavior in a wide temperature region. The negative differential magnetoresistivity (ND-MR) is observed for all samples in a moderately high magnetic field region. In a low magnetic field region, the MR shows a large hysteresis. AsXincreases, the variation of the MR is intensified. We consider that the total number of network channels of the electrical conduction is reduced and the spin scattering is consequently intensified.
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影响因子:
2.7
作者:
Nurit Taub;A. Tsukernik;G. Markovich
通讯作者:
G. Markovich
DOI:
10.1007/978-0-387-29185-7
发表时间:
2007-03
期刊:
--
影响因子:
--
作者:
C. Koughia;S. Kasap;P. Capper
通讯作者:
C. Koughia;S. Kasap;P. Capper
影响因子:
2.7
作者:
Pei, Wenli;Kumada, H.;Ishio, S.
通讯作者:
Ishio, S.
影响因子:
2.7
作者:
P. Brahma;S. Dutta;D. Dutta;Souri Banerjee;A. Ghosh;D. Chakravorty
通讯作者:
D. Chakravorty